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一维边界阻尼波动方程指数稳定的半离散有限差分一致逼近格式

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一维边界阻尼波动方程指数稳定的半离散有限差分一致逼近格式 刘建康, 武贝贝山西大学数学科学学院, 太原 030006 A Uniformly Approximated Semi-discretized Finite Difference Scheme for Exponential Stability of 1D Wave Equation with Damped Boundary LIU Jiankang, WU BeibeiSchool of Mathematical Sciences, Shanxi University, Taiyuan 030006, China
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摘要通过在时间方向引入一个平均算子,对一维边界阻尼波动方程构造了一个等距网格上的半离散有限差分格式.利用离散乘子法,证明了对偶系统半离散格式的一致可观测不等式,进而证明了原系统半离散格式的一致指数稳定性.数值实验验证了理论结果.
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收稿日期: 2018-08-02
PACS:O241.82
基金资助:国家自然科学基金面上(11772177)资助项目.

引用本文:
刘建康, 武贝贝. 一维边界阻尼波动方程指数稳定的半离散有限差分一致逼近格式[J]. 应用数学学报, 2018, 41(6): 832-845. LIU Jiankang, WU Beibei. A Uniformly Approximated Semi-discretized Finite Difference Scheme for Exponential Stability of 1D Wave Equation with Damped Boundary. Acta Mathematicae Applicatae Sinica, 2018, 41(6): 832-845.
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